MP says use Stand Oil, which I agree.
And I read the post about Horse Store Venice turps.
So I am searcing the 'ol net for suppliers.
Found European Larch Venice Turpentine (really a rosin) and various Linseed Oils on a wood finish supply site. The site even has a formula for a 1704 Violin Varnish.
http://www.woodfinishingenterprises.com/varnish.htmlInteresting wording on the Linsead Oils:
Linseed oil is extracted from Flax seeds. In the raw state it does not dry very well if used as a finish for wood. It is however, an essential ingredient for French Polishing and for making Boiled Linseed Oil. Boiled Linseed oil is a well known oil used in finishing wood. It is made by heating refined Linseed oil and adding driers to improve its drying properties. It can be used alone or with varnish to give an oil varnish finish. It is also used in the revised Michelman varnish formula. Varnish makers linseed oil has been refined to remove the “break” so that it will not become cloudy on heating to make varnish.
CAT. NO. DESCRIPTION 4oz(2) 8oz(3) 1pt(4) 1qt(5) 1ga(6)
20-2000- BOILED LINSEED OIL 6.50 10.80 29.90
20-2005- COLD PRESSED LINSEED OIL Inquire
20-2006- LINSEED STAND OIL 3.10 5.20 8.60 14.40 40.00
20-2010- RAW LINSEED OIL 6.50 10.80 30.00
20-2012- SUN THICKENED LINSEED OIL 12.70 21.10 35.20
20-2015- VARNISH MAKERS LINSEED OIL 6.50 10.80 30.00
From other sites:
Stand Oil: Linseed oil heat refined without air contact, to prevent oxidation.
Cold Pressed: Just squeezed and filtered!
More Info:
Stand Oil:
Stand oil is heat treated and polymerized (thickened) oil. This heat-bodied oil is made from well-refined linseed oil from American flax seeds that is cooked in closed kettles to make a bodied oil of medium acid range. The color is better than oils obtained by conventional open-kettle cooking, yet darker than vacuum-bodied oils.
The term "stand oil" derived from the Dutch word that designated drying oil that had been heat treated and aged by standing. Later it applied to oils that were bodied by heat treated for prolonged periods in open kettles. Stand oil, invented in the 19th century, replaced Venice turpentine and sun-thickened linseed oil in painting mediums. Stand oil leaves an enamel-like finish to paint. Bodied oils form harder films than refined or raw linseed oils. The use of the term "stand oil" is antiquated since bodied oils today are processed differently than those in the 19th century.
Adding large amounts of stand oil or bodied oil increases the tendency of oil paintings to wrinkle (alligator). Adding 10% by volume of bodied oil to alkyd painting mediums increases the viscosity of the alkyd medium and slows down the drying time.
Use turpentine or mineral spirits as the solvent for bodied oils and for brush and studio clean up.
Linseed oil is a yellowish drying oil derived from the dried ripe seeds of the flax plant (Linum usitatissimum, Linaceae).
Cold Pressed Linseed Oil:
Natural Pigments cold-pressed linseed oil is pressed from flaxseeds without the use of heat or solvents. Cold-pressed linseed oil is recommended when grinding dry pigment to make oil paint. Used as a medium with oil colors for thinning, heightening gloss and transparency, and reducing brush marks.
Linseed oil is a yellowish drying oil derived from the dried ripe seeds of the flax plant (Linum usitatissimum, Linaceae).
Neat.
Let the discussion proceed!
